diff --git a/app.py b/app.py
index 79add7a..8c7170b 100644
--- a/app.py
+++ b/app.py
@@ -91,8 +91,7 @@ def run_on_video(self, mmif: Mmif, videodocument: Document, new_view: View, **co
         + mmif, annotated with boundingboxes
         """
         cap = vdh.capture(videodocument)
-        views_with_tframe = [v for v in mmif.get_views_for_document(videodocument.id) 
-                             if v.metadata.contains[AnnotationTypes.TimeFrame]]
+        views_with_tframe = mmif.get_views_contain(AnnotationTypes.TimeFrame)
         if views_with_tframe:
             frame_type = set(config["frameType"])
             frame_type.discard("")  # after this, if this set is empty, the next step will use "all" types
diff --git a/metadata.py b/metadata.py
index e9fd85a..601a90b 100644
--- a/metadata.py
+++ b/metadata.py
@@ -33,7 +33,6 @@ def appmetadata() -> AppMetadata:
     metadata.add_parameter(
         name="frameType",
         type="string",
-        choices=["", "slate", "chyron", "rolling-credit"],
         default="",
         multivalued=True,
         description="Segments of video to run on. Only works with VideoDocument input and TimeFrame input. Empty value means run on the every frame types.",